• Upgrade your Internet Experience
• Sign in
• Microsoft.com
• United States (English)

  Brasil (Português)Česká republika (Čeština)Deutschland (Deutsch)España (Español)France (Français)Italia (Italiano)Россия (Русский)대한민국 (한국어)中华人民共和国 (中文)台灣 (中文)日本 (日本語)香港特别行政區 (中文)

Ask a question

Search Forums:

• Search Windows Presentation Foundation (WPF) Forum
• Search All .NET Development Forums
• Search All MSDN Forums

 

Bubbling and Tunneling Events

• Wednesday, June 21, 2006 7:53 PMTomer Shamam

   
  

  0

  Hi,

  I'm running the following XAML:

  <Window x:Class="Controls.Window1"

  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

  Title="Controls" Height="300" Width="300"

  >

  <WrapPanel>

  <Button x:Name="button"

  PreviewMouseLeftButtonDown="PreviewA"

  MouseLeftButtonDown="A">

  <Grid

  PreviewMouseLeftButtonDown="PreviewB"

  MouseLeftButtonDown="B">

  <WrapPanel>

  <Ellipse Fill="Blue" Margin="5" Width="25" Height="25" Stroke="Black" HorizontalAlignment="Center" VerticalAlignment="Center"

  PreviewMouseLeftButtonDown="PreviewC"

  MouseLeftButtonDown="C"

  />

  <TextBlock Margin="5" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="14" Text="Click Me!"

  PreviewMouseLeftButtonDown="PreviewD"

  MouseLeftButtonDown="D"

  />

  </WrapPanel>

  </Grid>

  </Button>

  </WrapPanel>

  </Window>

  Each event handler writes  its name using Debug.WriteLine().

  The problem is that the Bubble event does not implemented by the Button. How's that?

  The output is:

  PreviewA

  PreviewB

  PreviewC

  C

  B

  Where is 'A' ???

  Is it possible that Button already implements MouseLeftButtonDown to create the "Click" event instead? I think that it is a BUG!

  Tomer

  • Reply
  • Quote